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Sound Level Meter DB30-6228-B1/C1/D1/E1/F1/B2/C2/D2/E2/F2

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￥9999.00
Code DB30-6228-B1/C1/D1/E1/F1/B2/C2/D2/E2/F2
Brand DUBAN
Model DB30-6228-B1/C1/D1/E1/F1/B2/C2/D2/E2/F2
0757-86700526
产品详情产品评论(0)

1噪声频谱分析仪 DB-6226F.jpg

  • 【Applications】

    This series of sound level meters is a digital multi functional acoustic measuring instrument, specifically designed for various types of noise assessment. It can measure multiple parameters including frequency-weighted sound pressure level, time weighted sound pressure level, equivalent continuous sound level, exposure sound level, and statistical sound level. The instrument provides 8 operating modes for users to select from: general sound level measurement, integral average, parallel measurement, statistical analysis, 24 hour measurement, 1/1 octave band, 1/3 octave band, and indoor noise mode. Additionally, the instrument is equipped with a low-frequency frequency weighting function, which is suitable for the measurement of secondary radiated noise.

  • 【Features】

  • *Accurate measurement with large memory

  • Optional features: recording, scheduled shutdown, GPS positioning, and Bluetooth

  • * Extended standby time

  • * Spectrum display.

  • 【Specifications】

    a)performance gradeClass 1 or Class 2 as specified in GB/T 3785.1-2010/IEC61672-1:2013.
    b)Electromagnetic Field Radiation and Anti-
    jamming Classification    		Class Xas specified in GB/T 3785.1-2010/IEC 61672-1:2013.
    c)frequency weightingA-weighting,C-weighting,Z-weighting,Low(low frequency).Note.When A-weighting is selected andlow-frequency( √)weighting is also chosen,low-frequency A-weighting can be applied to measure secondary radiation noise.Generally,low-frequency weighting
    is not required for measurements.Please keep the "Weighting"option set to low-frequency(x)weighting in the settings
    d)time weightingF(fast);S(slow);I   (pulse).
    e)frequency range10 Hz~20 kHz(Level1);20 Hz~12.5 kHz(Level 2)
    f)nominaloperatingmodeThe nominal working mode is microphone without wind shield.
    g)Reference environmental conditionsAir temperature 23℃,relative humidity 50%,static pressure:101.325 kPa,
    h)MicrophonetypeThe free-field frequency response measuring microphone has a nominal diameter of 12.7 mm,a nominal sound pressure sensitivity of 50
    mV/Pa(nominal sound pressure sensitivity level of-26 dB,reference value of 1V),and a tip capacitance of approximately 15pF
    I)indicator128×128-pixel liquid crystal display (LCD),3.0 inches,resolution 0.1 dB,data refresh rate 1 second.It features warning
    indicators such as overload,below limit,and low battery voltage.
    j)Measurement at 1kHz frequency Range30dB(A)~130dB(A);40dB(C)~130dB(C);45dB(Z)~130dB(Z)
    Note:1-The measurement range for other frequencies shall be the sum of theupper and lower limits of the instruments measurement range and th
    e frequency-weighted nominal values specified in the national standard GB/T 3785.1-2010provided that the upper limit shall not exceed the meas
    urement range of 1 kHz.Both the upper and lower limits shall not be lower than the lower limit of the 1 kHz measurement range.
    2-The measurement range can be provided by the user according to the needs ofother non-nominal measurementrange.)
    k)octave1)1/1 octave:16 Hz,31 Hz,63 Hz,125 Hz,250 Hz,500 Hz,1 kHz,2 kHz,4kHz,8kHz,and 16kHz;
    2)1/3 octave 16 Hz,20 Hz,25 Hz,31Hz,40 Hz,50 Hz,63Hz,80 Hz,100 Hz,125 Hz,160 Hz,200 Hz,250 Hz,315 Hz,
    400 Hz,500 Hz,630 Hz,800 Hz,1 kHz,1.25kHz,1.6 Hz,2 kHz,2.5kHz,3.15 kHz,4kHz,5kHz,6.3 kHz,8 kHz,10 kHz,
    12.5 kHz,16 kHz,and 20 kHz.
    L)memory1)16GB of memory.2)Calibration records are automatically stored in the instrument's memory;
    3)The measurement data is automatically stored in the instrument's memory.4)Select USB in Settings to use it as a USB drive

    m)source1)Itis powered by 5AA batteries
    2)When the battery voltage is toolow,the battery symbol on the display will um blank and start to flash
    3)It can be connected to a USB port(50V)for external power
    4)When operating in 24-hour measurement mode,it is recommended to use a power bank

    Note:Explosion-proof products must use LR6 alkaline batteries only.
    n)power    bankFor extended or 24-hour measurements,a power bank is recommended with a 10000mAh battery providing over 36 hours of operation
    o)Autocalibrationrange±4.5dB(referencesensitivity:50mV/Pa).

    p)Calibrationcheckfre-quency    		1kHz.

    q)Theeffectofwindproof cover    		The deviation must not exceed 0.5 dB with in the critical frequency range
    r)referencedirectionFrontalincidence(0°incidence).
    s)referencesoundpress-urelevel94dB,withareferencesoundpressureof20μPa.
    t)preheating time60s.
    u)intrinsic noise level1)Under reference environmental conditions,the self-generated noise level does not exceed 25 dB(A-weighted)and 35 dB(C-weighted)
    2)The expected value of the self-enerated noise level of the sound level meter is no greater than the above value when the electrical input of the sound level meter is
    short-circuited by a 15 pF capacitor.
    V)temperature affect

    The ifference between the sound level at any temperature and the sound level at the reference temperature is not more than ±0.7 dB for Class 1
    sound level meter and±1.0 dB for Class 2 sound level meter in the working temperature range of 0℃ to 40℃
    w)humidity effectWhen therelative humidity changes from 25%to 90%,the difference between the indicated sound level and the reference sound level at the

    corresponding relative humidity should not exceed±07dB for Classl sound level meters and±1.0dB for Class2 sound level meters
    x)temperatureandhumidity limitsTemperature:-20℃ and+60℃;Relativehumidity:95%.
    y)Adjustment data of sound pressure
    response and free field response    		The equivalent free field response can be obtained by adjusting the datain Table1 based on the acoustic pressure responsee
    generated by the acoustic calibrator or the simulated acoustic pressure response produced by the electrostatic exciter.
    z)Test theimpedance of the microphone replacement(fortesting)15 pF in series with 10Ω.
    Aa)The maximum sound pressure level that can be applied to the
    microphone    		146dB。
    Bb)Th maximu peak-to-peak voltage that can be applied to
    the electrical inputterminal    		15V。
    Cc)output portType-C is used for printing or data communication.

    Dd)analog output    		1)The output jack is a3.5mm dual-channel headphone jack
    2)DC output The output voltage is aproximately 15mV/dB,with a range of 450mV to 1950mV
    3)ACoutput The output is linearly related to the measured signal and the rot mean square value of the maximum AC output voltage does not exced2V
    Ee)outline dimension270mm×90mm×32mm.
    Ff)weightApproximately 360g(excluding the battery).



    Standard layoutMain engine
    Hurricane globe
    Portable suitcase(B04)
    Operating instruction
    Measuring microphone
    Optional attachmentsTripod
    External power adapter
    Electrical signal adapter
    Class 1 sound level calibrator/Class 2 sound level calibrator
    Extension cable
    Printer
    Output plug
    Bluetooth
    Powerbank
    USB Online Line+Software


       

  • 【DOWNLOAD】

  • ‍Sound Level Meter -CA‍

  • Sound Level Meter -MA

噪声频谱分析仪 DB-6226F.jpg




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